My nephew's meet Little Orphan Annie, a barbado sheep whose mom died when she was just 10 days old.
When I was a teenager, my family and I took in a Holland Lop doe who had been abandoned; two days later she gave birth to five lovely babies. She was a great mom and all her little ones grew up beautifully. We kept the mother and one daughter. They have since passed on, but we are so glad we got to have them with us.
We rescued Tia Maria (right) from a factory when she was barely weaned. Our older cat, Sushi, took her under her wing and completely mothered her, even though Sushi is spayed and has never had any babies. Two and a half years later, they still sleep, play and groom together. It's difficult to see in these photos, but the tabby patch on Sushi's side forms a heart :)